PMID- 2721822 OWN - NLM STAT- MEDLINE DCOM- 19890627 LR - 20190515 IS - 0012-1797 (Print) IS - 0012-1797 (Linking) VI - 38 IP - 6 DP - 1989 Jun TI - Effect of carbohydrate intake on kidney function and structure in SHR/N-cp rats. A new model of NIDDM. PG - 679-85 AB - The SHR/N corpulent (cp) rat is a genetically obese rat that develops hyperglycemia, hyperinsulinemia, and proteinuria. This study was designed to evaluate the effects of high carbohydrate (CHO) intake on renal function and structure in this animal model and to determine whether the renal effects are related to the type of CHO ingested. Two groups of 5-wk-old obese male SHR/N-cp rats and lean male littermates were fed diets containing 54% CHO in the form of sucrose or starch. After 12 wk, renal function parameters, including creatinine clearance, urinary glucose excretion, and urinary protein excretion, were measured. Renal morphology was evaluated by semiquantitative light and electron microscopy. On either diet, obese rats had significantly higher urinary glucose and protein excretions than their lean littermates. Mean creatinine clearance (ml/min) in obese rats did not differ significantly from values observed in lean rats. When corrected for body weight, creatinine clearance (ml.min-1.kg-1) tended to be lower in obese than in lean rats, but the difference was significant (P less than .02) only for obese and lean sucrose-fed animals. Obese rats fed sucrose compared with their obese counterparts fed starch had higher body weight (+8%, P less than .05), glucose excretion (+63%, P less than .02), and protein excretion (+242%, P less than .005). In obese rats, protein excretion correlated with glucose excretion (r = .71, P less than .01). Glomerular lesions consisting of mesangial expansion and intercapillary nodules were found in obese but not in lean rats. Moreover, obese rats fed sucrose had a significantly greater number of involved glomeruli than obese rats fed starch.(ABSTRACT TRUNCATED AT 250 WORDS) FAU - Velasquez, M T AU - Velasquez MT AD - Department of Medicine, George Washington University Medical Center, Washington, DC 20037. FAU - Kimmel, P L AU - Kimmel PL FAU - Michaelis, O E 4th AU - Michaelis OE 4th FAU - Carswell, N AU - Carswell N FAU - Abraham, A AU - Abraham A FAU - Bosch, J P AU - Bosch JP LA - eng PT - Journal Article PL - United States TA - Diabetes JT - Diabetes JID - 0372763 RN - 0 (Dietary Carbohydrates) SB - IM MH - Animals MH - Diabetes Mellitus, Experimental/pathology/*physiopathology MH - Diabetes Mellitus, Type 2/pathology/*physiopathology MH - Dietary Carbohydrates/*pharmacology MH - Glomerular Mesangium/*pathology/ultrastructure MH - Glycosuria MH - Kidney/drug effects/physiology/*physiopathology MH - Kidney Function Tests MH - Kidney Glomerulus/cytology/*pathology MH - Male MH - Microscopy, Electron MH - Proteinuria MH - Rats MH - Rats, Inbred SHR/*physiology MH - Rats, Inbred Strains/*physiology EDAT- 1989/06/01 00:00 MHDA- 2001/03/28 10:01 CRDT- 1989/06/01 00:00 PHST- 1989/06/01 00:00 [pubmed] PHST- 2001/03/28 10:01 [medline] PHST- 1989/06/01 00:00 [entrez] AID - 10.2337/diab.38.6.679 [doi] PST - ppublish SO - Diabetes. 1989 Jun;38(6):679-85. doi: 10.2337/diab.38.6.679.